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The Responses Of Ecologically Dissimilar Populations Of The Water Snake, Natrix Sipedon Sipedon To Surface Extracts Of Prey Species, With Observations On Feeding And Defense Behaviors, Doris Gove

Masters Theses

Observations of defensive and feeding behavior of Natrix sipedon were made in the field and in the lab. Crypticity, mimicry of poisonous snakes, striking, production of cloacal secretion and tail autonomy were defensive behaviors discussed. Feeding behaviors discussed were hunting, catching prey and tongue-flicking.

Experiments were performed on the responses of snakes from ecologically dissimilar populations of N. sipedon to surface extracts of local prey species. The populations were: (1) a laboratory-reared litter of ten one-year-old snakes; (2) six wild-caught snakes from Sterchi's fish hatchery in north Knoxville, Tennessee; and (3) six wild-caught and eight newborn snakes (a litter) from …

Placental Transfer And Maternal-Fetal Utilization Of Manganese By Third Trimester Pregnant Heifers, Boyce P. Wanamaker

Masters Theses

Although manganese has been demonstrated to be required for normal life processes, little information is available on the placental transfer and maternal-fetal utilization of this mineral in the bovine. Nine pregnant and three non-pregnant heifers were used in this study. They were dosed with a tracer level of radio-manganese for blood balance and subsequent placental transfer and maternal-fetal manganese utilization studies. Results of this study suggested total blood radio-manganese levels to drop from 14% of the administered dose at 3 hours to 1.8% after 144 hours. Blood clearance studies indicated that equilibrium between red cells and plasma was reached 38 …

The Allelopathic Influences Of Sassafras Albidum In Old Field Succession In Tennessee, Robert Edward Gant

Masters Theses

The purpose of this investigation was to study the mechanism that allows Sassafras albidum to maintain itself in relatively pure stands through many successional stages. Sassafras albidum is a common woody member of the old field community in Tennessee, invading in the early seral stages and surviving into the mature forest. Compounds known to be inhibitory to plant growth have been isolated from sassafras by other investigators. The presence of these terpenoid compounds in various organs of this plant suggests the existence of a possible allelopathic interference mechanism.

A survey of the internal and external herbaceous ground cover revealed the …

A Field Experience With The Nutrition Section Dallas City Health Department, Dallas, Texas, Rebecca Mcneill Mullis

Masters Theses

This thesis relates observations and experiences during an eight-week field experience while with the Nutrition Section of the Dallas City Health Department. The purpose of this field experience was to integrate academic theory and practical application in the field of public health nutrition. In addition, the field experience was to provide an opportunity to observe nutritional problems related to the various stages of the life cycle and to work with other ethnic groups, including blacks and Chicanos.

The field experience was designed to allow the author to familiarize herself with the philosophy and principles of public health. Through observation and …

The Training And Selection Of A Panel For The Sensory Evaluation Of Beef, Constance Maria Hudgins

Masters Theses

The training and selection of persons for a panel for sensory evaluation of beef proceeded in three phases - - preliminary screening by triangle tests, training sessions with hamburger patties with known differences in composition, and training with 6-7-8th rib roasts varying in USDA grades. Various statistical criteria were used to rank panelists' performance on scoring flavor, juiciness, and tenderness of hamburger patties and roasts. These criteria were the percentage of correct responses on the triangle tests; R² values and F ratios for flavor, tenderness, and juiciness scores and correlation coefficients for juiciness scores versus percent fat in cooked …

A Field Experience In Public Health Nutrition With The Florida Department Of Health And Rehabilitative Services, Becky Lynn Huff

Masters Theses

This thesis describes and analyzes a field experience in Public Health Nutrition with the Florida Department of Health and Rehabilitative Services. The purpose of the field experience was to supplement a background in academic principles with knowledge acquired through practical work situations.

Conferences and interviews with public health professionals were planned to increase understanding of public health organization. The broad scope of Florida's nutrition program provided a unique opportunity for the author to observe and participate in a variety of the responsibilities of a Public Health Nutritionist. Portions of the field experience were spent in four different parts of the …

Field Experiences With The Nutrition Section Of The Division Of Health, Wisconsin Department Of Health And Social Services, Roberta Jean Hine

Masters Theses

This thesis is based upon the observations and experiences during eight weeks with the Nutrition Section of the Division of Health, Wisconsin Department of Health and Social Services. The purpose of the field training was to complement academic training at The University of Tennessee and to supplement concurrent field experiences in Knox County.

A variety of experiences aide the student in her study of the nutrition program as a component of organized health services. Information was obtained on history, organization and programs of the Division of Health and the Nutrition Section through selected readings, conferences, conversations, and observations. Observations of …

Elaidinized Lipid In Relation To Its Effect On Batter Structure, Rebecca Jane Snodgrass

Masters Theses

Batter aeration as affected by substitution of elaidinized lipid and related to other properties was investigated. Elaidinized lipid was substituted for hydrogenated safflower oil shortening at four levels, 0, 40, 60, and 80 percent, in the preparation of lipid samples. Lipid samples were characterized by gas-liquid and thin-layer chromatography and by melting point determination. Specific gravity and viscosity of the batters, volume index of the cakes, and lightness index of the crumb were determined. Batter structure was studied microscopically.

An increase in trans isomer concentration from 8.8 percent to 40.6 percent was accompanied by an increase in melting point from …

Food Service Personnel Training And Employment Needs Of Nursing Homes In West Tennessee, Bettye Hopper Smith

Masters Theses

Training and employment needs of food service employees in selected West Tennessee nursing homes were investigated. Personnel problems, managerial qualifications, and labor turnover also were studied. Information was obtained by means of questionnaires and personal interviews. A randomized sample consisted of 14 large nursing homes (50 beds and over) and 11 small nursing homes (25 to 50 beds).

Less than half of the nursing homes surveyed were conducting or participating in training programs. Where training was taking place, the skills and knowledge considered most important for the particular group were not always the ones being taught. Managers of large nursing …

Field Observation And Experiences In The Division Of Nutrition - Ohio Department Of Health, Nancy Luce Young

Masters Theses

Nutrition is an integral part of life and health. Textbooks and academic training in nutrition need to be supplemented with practical experience in the community in order to round out a nutritionist's training. The eight-week field experience in a health agency was planned to increase the breadth of the student nutritionist's previous experience and academic training and to prepare her to assume a leadership role in the application of nutrition in public health.

The field experience with the Nutrition Division of the Ohio Department of Health was designed to enable the student to observe and participate in applied nutrition in …

Dietary Sulfate And The Excretion Of Glycocholic And Taurocholic Acids In The Rat, Elfrieda Gayle Fuqua

Masters Theses

The relationship of dietary sulfate and the availability of taurine in the tissues to the relative conjugation of cholic acid with glycine and taurine to form the bile acids, glycocholic and taurocholic acids, in rats was investigated by feeding diets which contained different levels of total sulfur as sulfate and different neutral to inorganic sulfur ratios. Following stomach-tube feeding of cholic acid-24-¹⁴C, the relative conjugation, glycocholic:taurocholic ratio (G:T ratio), was determined by extracting the bile acids from the intestinal contents of the jejunum-ileum section of the small intestine. The bile salts were separated by thin-layer chromatography and visualized …

Nutrition Field Observations And Experiences With The Michigan Department Of Public Health, Margaret Lavern Pipkin

Masters Theses

This thesis describes and analyzes the author's field experience with the Michigan Department of Public Health. As a supplementary experience to the academic training in Public Health Nutrition, the purposes of the field experience were: to investigate the health concerns in Michigan, to study the organization and programs of the department and particularly those of the Nutrition Section, and to observe how programs are designed and implemented to meet the established needs. The data for this thesis were obtained from personal conferences, observations, participation, and related literature.

The activities planned for the author were designed to provide orientation to the …

Sensory And Objective Evaluation Of The Color Of Pork Longissimus Dorsi Muscle Heated To 155° And 170°F, Winifred Ann Akin

Masters Theses

The color of longissimus dorsi muscle of 4-6 rib pork roasts was evaluated by sensory tests, by color reflectance, and by myoglobin content, after heating to 155° and 170°F. The color of the raw muscle of 8-9 rib area was evaluated by color reflectance and for myoglobin content. The roasts, procured from eighteen Duroc or Hampshire hogs, were classified subjectively into three color groups.

Color reflectance measurements on raw muscle indicated that as the subjective color classification increased from slightly pale (2) to slightly dark (4) the color was more dull and more purple. The color differences found by the …

Elaidinized Lipid In Relation To Its Effect On Emulsification, Amelia Gail Brown

Masters Theses

Emulsification as affected by substitution of elaidinized lipid was investigated. Cream puffs were prepared with lipids of 0, 40, 60 and 80 percent levels of substitution of elaidinized lipid for corn oil. Viscosity of the lipids at 61^oC was measured. Oil separation data were obtained from frozen, thawed and centrifuged batter. Penetrability of batters was measured. Volume by rapeseed displacement was determined for the baked products. Samples of batter, interior and crust were prepared for microscopic study by freeze-drying, staining of lipid with osmium tetroxide vapors, infiltration with paraffin and sectioning. Judges evaluated the sections on a descriptive …

Distribution Of The Fishes Of The Hiwaaee River System-Ecological And Taxonomic Considerations, Robert Knapp Hitch

Masters Theses

This paper summarizes the results of seventy-two collections made by the author along Georgia and Tennessee portions of the Hiwassee River. The more interesting species are listed and possible habitat preferences shown by these species are noted.

A discussion of the distribution of fishes within the various tributaries of the Hiwassee is presented, as are possible reasons for the absence of fishes from certain tributary systems.

The problems associated with the taxonomy of the species of the Genera Cottus and Hypentelium are also examined.

The results of this research indicate some of the possible effects of the isolation of the …

Seasonal Food Habits Of The Black Bear (Ursus Americanus) In The Smoky Mountains Of Tennessee And North Carolina, Larry Eugene Beeman

Masters Theses

This study was conducted on the Tennessee side of the Great Smoky Mountains National Park and game management areas in North Carolina. Information on seasonal food habits of the black bear (Ursus americanus) was obtained through analyses of scat and stomachs collected during 1969 and 1970.

In the Great Smoky Mountains National Park herbaceous species were the most common food items in the spring. When berries of shrub species matured, bears at large qunatities of Rubus sp., Vaccinium sp., and Gaylussacia sp., A saprophyte, Conopholis americana, was also an important food item during the summer and early …

Elevational Studies Of Silphidae (Insecta: Coleoptera) In Southeast Tennessee, Barry Charles Lumpkin

Masters Theses

During the period of June 17-December 2, 1970 baited pit-fall traps were used to collect 3467 specimens of Silphidae and related carrion frequenting Coleoptera at varying altitudes (800-6500 ft.) in southeast Tennessee. Ten species of Silphidae and representatives of five other families of beetles (Carabidae, Staphylinidae, Histeridae, Scarabaeidae, and Trogidae) were consistently collected from the traps during the study period. The genus Nicrophorous appeared to occupy the higher elevations in the study area while the genus Silphidae occupied the lower elevations. N. marginatus and N. hydrophiloides appeared to have their elevational centers at higher altitudes than those found in the …

Trans Isomers In Relation To Their Effect On The Aeration Function Of A Shortening, Ellen Brasher Willis

Masters Theses

Lipid effects on aeration of batters and sensory attributes of cakes were investigated. The shortenings were prepared from lard with elaidinized vegetable oil substituted at the 0, 40, 60 and 80 percent levels. These levels of substitution represented trans isomer contents of 0 to 56 percent of the total monoene. Penetrability of the manipulated lipids decreased with increasing elaidinized lipid substitution.

Viscosity and density determinations were made on the batters. Viscosity increased (P<0.01) up to the 60 percent level of substitution, at which level density was the lowest (P<0.01).

Volume index was measured as the area (cm²) of the center-cut cross-section. Cakes made with unsubstituted lard were smallest (P<0.01) and those made from lipid at the 80 percent substitution level were largest (P<0.01).

The sensory panel judged the …

Observations And Experiences In The Nutrition Division, St. Louis County Health Department In 1970, Louise Johnson Bennett

Masters Theses

This thesis is based upon observations and experiences during eight weeks with the Nutrition Division of the St. Louis County Health Department. The purpose of this field training was to supplement the academic phase of the program in public health nutrition at The University of Tennessee.

The field experience and the preparation of this report provided an opportunity for the student nutritionist to evaluate the health needs of a community and to observe the public health program which had been planned for that community. A varied schedule of activities with health department personnel was devised to familiarize her with the …

An Evaluation Of The Nutritional Status Of Elderly Women Living In A State Psychiatric Hospital, Nita Elizabeth Whitfield

Masters Theses

The purposes of this study were to evaluate the nutritional status of elderly institutionalized women as indicated by nutrient intakes, blood levels of selected constituents, and bone density measurements; and to study the correlations that exist between these parameters.

Participants resided at Eastern State Psychiatric Hospital. Permission for participation was obtained by signed consent of the subject and her legal guardian. Complete dietary information (7- day records of weighed food consumption) was obtained for 67 participants. Physical measurements (height, weight, and bone density) and blood samples were obtained for 54 and 52 of the subjects, respectively.

Daily nutrient intakes from …

Hardwood Flooring Yields From Appalachian Red Oak Lumber, Hollis R. Large

Masters Theses

The purpose of this study was to determine the effect of the size and grade of red oak lumber on the quantity and quality of hardwood flooring yield. The data were to provide information which may be used by flooring producers in determining the optimum input lumber mix under varying market conditions.

Three grades of kiln-dried red oak lumber, 1, 2, and 3A common, were selected for study. Each of the three grades were subdivided into four size classes based on lumber width and length. The size classes consisted of lumber less than eight inches wide and less than eight …